package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Employee;
import com.itheima.reggie.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

@Slf4j
@RequestMapping("/employee")
@RestController
public class EmployeeController {
    @Autowired
    private EmployeeService employeeService;
@PostMapping("/login")
    public R<Employee>login(HttpServletRequest request, @RequestBody Employee employee){
    /*将页面提交的密码 password进行MD5
    * 加密处理*/
    String password = employee.getPassword();
    password= DigestUtils.md5DigestAsHex(password.getBytes());
    /*根据压面提交的用户名username查询数据库*/
    LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
    queryWrapper.eq(Employee::getUsername,employee.getUsername());
    Employee emp = employeeService.getOne(queryWrapper);
    /*如果没有查询到范湖登录失败的结果*/
    if (emp==null){
        return R.error("登录失败");
    }
    /*密码比对   如果不一致返回登陆失败的结果*/
    if (!emp.getPassword().equals(password)){
        return R.error("登录失败");
    }/*查看员工状态*/
    if ((emp.getStatus()==0)){
        return R.error(("当前账号已禁用"));
    }
    /*登陆成功*/
    request.getSession().setAttribute("employee",emp.getId());
    return R.success(emp);
}
/*员工登出*/

    @PostMapping("/logout")
    public R<String> logout (HttpServletRequest request){
        //清理session中保存的当前登录的员工的id
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");

    }
    /*新增员工*/
    @PostMapping
    public R<String>save(HttpServletRequest request,@RequestBody Employee employee)throws Exception{
        /*打印请求的数据*/
        log.info("[新增,{}]",employee  );
        /*设置出事密码(md5 加密)*/
        String dbPassword=DigestUtils.md5DigestAsHex("123456".getBytes());
        employee.setPassword(dbPassword);
        /*设置创建和更新的时间*/
        employee.setCreateTime(LocalDateTime.now());
        employee.setUpdateTime(LocalDateTime.now());
        /*获取员工的id 设置创建和更新用户的id*/
        Long empId = (Long) request.getSession().getAttribute("employee");
        employee.setUpdateUser(empId);
        employee.setCreateUser(empId);
        /*完成保存的业务*/
        employeeService.save(employee);
        return R.success("新增成功");
    }
    /*员工信息分页查询*/
    //@Param page 当前查询页码
    //@param pageSize 每页显示记录数
    //@param name 员工的姓名 -可选参数
    //@Return
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name) {
        /*构造分页构造器*/
        log.info("page={},pageSize={},name={}",page,pageSize,name);
        Page pageInfo=new Page(page ,pageSize);
        /*构造条件构造器*/
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper();
        /*天剑过路的条件*/
        queryWrapper.like(StringUtils.isNotEmpty(name),Employee::getName,name);
        /*添加排序条件*/
        queryWrapper.orderByDesc(Employee::getUpdateTime);
        employeeService.page(pageInfo,queryWrapper);
        return R.success(pageInfo);
    }
    /*根据员工id 修改员工信息*/

    @PutMapping
    public R<String> update(HttpServletRequest request,@RequestBody Employee employee){
        log.info(employee.toString());
        Long empId = (Long)request.getSession().getAttribute("employee");
        employee.setUpdateTime(LocalDateTime.now());
        employee.setUpdateUser(empId);
        employeeService.updateById(employee);

        return R.success("员工信息修改成功");
    }

    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id){
        log.info("根据id查询员工信息...");
        Employee employee = employeeService.getById(id);
        if(employee != null){
            return R.success(employee);
        }
        return R.error("没有查询到对应员工信息");
    }





}
